I built a token cost tracker for Claude Code - and it changed the way I think about AI development

It started with a number I couldn’t explain A few months ago, I looked at my Anthropic billing dashboard and saw a number that didn’t add up. I knew roughly how much I’d worked with Claude Code. The bill said otherwise. I couldn’t tell which sessions were expensive. I couldn’t tell why. I only had a total figure at the end of the month—and no way to link it to specific work. That bothered me. Not because of the money—but because of the lack of visibility. And as someone who’s worked in IT for 30